The promotion from a Level 1 Mage to a Level 2 Mage is a particularly important juncture, with many wizards getting stuck at this stage for their entire lives.
The biggest issue among these is the resource problem; advancing to a Level 2 Mage requires a massive amount of resources, and merely acquiring an Energy Well demands the accumulation of considerable wealth over time.
Coupled with the extremely high difficulty of advancing to a Level 2 Mage and the high success and failure rate, one must prepare everything possible to increase the probability of successful advancement.
The Soul Soothing Holy Contract is undoubtedly an extremely suitable treasure, able to form a powerful stable force field within the spiritual power mind, greatly enhancing the stability of the Spiritual Sea.
This would make the promotion process nearly worry-free, and even if the promotion fails, it wouldn't cause much damage, leaving room for another attempt.
